Title:
PREPARATION METHOD FOR HIGH-PURITY POWDER MATERIAL, APPLICATION OF HIGH-PURITY POWDER MATERIAL, AND ALLOY RIBBON
Document Type and Number:
WIPO Patent Application WO/2022/036906
Kind Code:
A1
Abstract:
A preparation method for a high-purity powder material, comprising: first preparing, by means of melt solidification, an alloy ribbon having a solidified structure consisting of a matrix phase and a disperse particle phase, wherein during the solidification process of the alloy ribbon, impurity elements are enriched to the matrix phase, so that the disperse particle phase is purified; and removing the matrix phase in the alloy ribbon to obtain a high-purity target powder material constituted by the disperse particle phase. The preparation method features a simple technology, easy operations, and low costs, can prepare nano-scale, submicron-scale, micron-scale, and millimeter-scale high-purity powder materials, and has good application prospects in the fields of catalytic materials, powder metallurgy, composite materials, wave-absorbing materials, sterilization materials, magnetic materials, metal injection molding, 3D printing, and coatings.
Inventors:
ZHAO YUANYUN (CN)
LIU LI (CN)
LIU LI (CN)
Application Number:
PCT/CN2020/130954
Publication Date:
February 24, 2022
Filing Date:
November 23, 2020
Export Citation:
Assignee:
ZHAO YUANYUN (CN)
International Classes:
B22F9/02; B22D11/06; B22F1/00; B22F9/16; B82Y30/00; B82Y40/00; C23F1/30; C23F1/40; C23F1/44
Foreign References:
| CN111945000A | 2020-11-17 | |||
| CN111590084A | 2020-08-28 | |||
| CN111940750A | 2020-11-17 | |||
| CN111334682A | 2020-06-26 | |||
| CN106811750A | 2017-06-09 | |||
| CN110257735A | 2019-09-20 | |||
| CN106916988A | 2017-07-04 | |||
| US4410490A | 1983-10-18 |
Attorney, Agent or Firm:
SHENZHEN LANFENG SHENGSHI INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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